Vigilant Tolan is a member of the Vigilants of Stendarr.
He is initially met inside Fort Dawnguard talking to Isran about the recent vampire attacks. He offers to meet the Dragonborn at Dimhollow Crypt during the Awakening quest, but doesn't follow them there. Once the Dragonborn arrives, they will find him dead inside, having been killed by the vampires, but not before taking some of them down with him.
- Tolan may stay in Fort Dawnguard at the entrance even if the player has encountered him dead During the Awakening quest, Interaction is limited though as he only replies with generic responses such as "need something?" If he is killed by the player a bounty will appear for The Rift and the Dawnguard will turn hostile, however, Serana will not.